Issues

• Numeric LabelEncoder silently truncates signed 64-bit class values

  microsoft/hummingbird#815 · Filter by author Linxiushen opened on Sep 27, 2026

• Vectorize Multi-Class SVC Decision Function Evaluation to Improve Efficiency

  microsoft/hummingbird#810 · Filter by author v-thlewis opened on Aug 6, 2026

• Feature Request: C/C++ code generation backend for embedded deployment

  microsoft/hummingbird#809 · Filter by author PashMohandes opened on Mar 31, 2026

• ONNX version restriction forces wheel build from source

  microsoft/hummingbird#808 · Filter by author marc-weber-cultivated opened on Mar 3, 2026
  1

• How to deal with LightGBM model with lineartree=True ?

  microsoft/hummingbird#807 · Filter by author Shanxce opened on Jul 31, 2025
  3

• Torch container save functionality OSError - file exists

  microsoft/hummingbird#805 · Filter by author ksid-99 opened on Apr 2, 2025

• Migrate torch.export from TorchScript for PyTorch model export

  microsoft/hummingbird#804 · Filter by author mshr-h opened on Feb 28, 2025

• Support Apache TVM Relax-based output container

  microsoft/hummingbird#803 · Filter by author mshr-h opened on Feb 28, 2025

• Predictions Mistmatch

  microsoft/hummingbird#802 · Filter by author nil-andreu opened on Feb 10, 2025
  1

• Pipelinefail on ONNX_ML

  microsoft/hummingbird#788 · Filter by author ksaur opened on Aug 2, 2024
  1

• SKLearn Model - Post transform ApplyBasePredictionPostTransform

  microsoft/hummingbird#782 · Filter by author XavierGeerinck opened on Jun 30, 2024
  1

• skl2onnx==1.17.0 breaks pipeline

  microsoft/hummingbird#776 · Filter by author ksaur opened on May 30, 2024
  1

• FAILED tests/test_sklearn_bagging.py::TestSklearnBagging::test_bagging_logistic_regression - AssertionError

  bug
  microsoft/hummingbird#773 · Filter by author mshr-h opened on May 28, 2024
  2

• onnxruntime.capi.onnxruntime_pybind11_state.Fail ONNXRuntimeError

  microsoft/hummingbird#770 · Filter by author ksaur opened on May 17, 2024
  2

• Need to update setup.py description

  good first issue
  microsoft/hummingbird#766 · Filter by author ksaur opened on Mar 8, 2024

• Documentation deploy problem

  microsoft/hummingbird#762 · Filter by author ksaur opened on Feb 15, 2024

• coredumps on Ubuntu pipeline runs

  microsoft/hummingbird#760 · Filter by author ksaur opened on Feb 14, 2024
  2

• Adding more ONNX data types

  enhancementhelp wanted
  microsoft/hummingbird#743 · Filter by author jjasont opened on Dec 5, 2023

• XGBoost 2.0.0 breaks tests

  help wanted
  microsoft/hummingbird#732 · Filter by author ksaur opened on Sep 18, 2023
  8

• Performing simple inference

  microsoft/hummingbird#731 · Filter by author maxwellflitton opened on Sep 15, 2023
  3

• xgboost tweedie loss predictions do not match

  enhancementhelp wantedneeds investigation
  microsoft/hummingbird#690 · Filter by author Maggie1216 opened on Mar 14, 2023
  2

• Prophet notebook example needs a path update

  microsoft/hummingbird#687 · Filter by author ksaur opened on Feb 23, 2023

• [sklearn] OneHotEncoder does't work correctly

  bugenhancementhelp wanted
  microsoft/hummingbird#684 · Filter by author faterazer opened on Feb 9, 2023
  6

  

• Upgrade LLVM to 15 when TVM build

  microsoft/hummingbird#682 · Filter by author mshr-h opened on Feb 6, 2023
  2

• MissingConverter: Unable to find converter <class 'sklearn.preprocessing._encoders.OrdinalEncoder'>

  enhancementgood first issuehelp wanted
  microsoft/hummingbird#671 · Filter by author dintellect opened on Jan 6, 2023
  3